Articles with "infinite variance" as a keyword



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COVID-19 cases and deaths in the United States follow Taylor’s law for heavy-tailed distributions with infinite variance

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Published in 2022 at "Proceedings of the National Academy of Sciences of the United States of America"

DOI: 10.1073/pnas.2209234119

Abstract: Significance Variations in the cumulative reported SARS-CoV-2 cases and COVID-19 deaths by US county, state, and date exemplify Taylor’s law of fluctuation scaling, a widespread ecological and epidemiological pattern. Specifically, on day 1 of each… read more here.

Keywords: cases deaths; taylor law; variance; infinite variance ... See more keywords
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Infinite variance problem in fermion models

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Published in 2022 at "Physical Review D"

DOI: 10.1103/physrevd.107.094502

Abstract: Monte Carlo calculations of fermionic systems with continuous auxiliary fields frequently suffer from a diverging variance. If a system has the infinite variance problem, one cannot estimate observables reliably even with an infinite number of… read more here.

Keywords: problem; problem fermion; monte carlo; variance ... See more keywords
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Anomalous band center localization in the one-dimensional Anderson model with a disordered distribution of infinite variance.

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Published in 2022 at "Physical review. E"

DOI: 10.1103/physreve.105.024131

Abstract: We perform a detailed numerical study of the influence of distributions without a finite second moment on the Lyapunov exponent through the one-dimensional tight-binding Anderson model with diagonal disorder. Using the transfer matrix parametrization method… read more here.

Keywords: band center; distribution infinite; one dimensional; distribution ... See more keywords